What covered much of North America between 10,000 and 100,000 years ago?

The quaternary period

or ice did

Explanation:

the answer is c.

i hope this .

it would have concentrated power in the executive branch of the government. it would have restored balance among the three branches of government. it would have set a precedent for government intervention in the economy. it would have signaled an end to all the programs of roosevelt’s new deal.

did this .